Identification of CH(+) emission in the Red Rectangle

Details Identification of CH(+) emission in the Red Rectangle Identification of CH(+) emission in the Red Rectangle

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...261l..25b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 261, no. 2, p. L25-L28.

Astronomy and Astrophysics

Astrophysics

25

Astronomical Spectroscopy, Asymptotic Giant Branch Stars, Emission Spectra, Methylidyne, Interstellar Matter, Molecular Ions, Stellar Evolution, Stellar Mass Ejection

Scientific paper

Waelkens et al. (1992) have recently reported high-resolution spectroscopic observations of the exciting star (HD 44179) of the Red Rectangle nebula. During this study a new set of sharp, optical emission features in the spectrum of the Red Rectangle was discovered. Here, these new features, which occur in the blue region of the spectrum between 4215 and 4245 A are analyzed and assigned to emission from low-lying rotational transitions in the (0,0) band of the A1Pi-Sigma(+) electronic system of the methylidyne ion, CH(+).

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